A new energy battery electrolyte magnetic filter

Abstract

The utility model relates to filter technical field, concretely to a kind of new energy battery electrolyte's magnetic filter, including centrifugal shell and the liquid inlet and outlet being set on centrifugal shell, the liquid inlet and outlet is input and output to battery electrolyte in centrifugal shell, still include: filter-pressing mechanism, set in centrifugal shell, the impurity in battery electrolyte is extruded filtration;Magnetic filter mechanism, installation is on filter-pressing mechanism, through setting centrifugal shell, battery electrolyte is centrifuged, and non-magnetic impurity is separated to centrifugal shell most edge position, by the guidance of impurity shovel, into magnetic filter mechanism, by the adsorption of magnetism again, filter out magnetic impurity, battery electrolyte containing non-magnetic impurity, is conveyed to filter-pressing shell, by the filter plate of multiple layers different model filter screen being driven to set in hydraulic pressure, with filter-pressing shell inner wall cooperation sliding, to realize the filtration, classification and collection of non-magnetic impurity.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically a magnetic filter for electrolyte in new energy vehicle batteries. Background Technology

[0002] As a core material in battery manufacturing, the purity of electrolyte in new energy vehicle batteries directly affects the performance and lifespan of the battery. During the electrolyte production process, various impurities inevitably get mixed in. Among them, magnetic impurities, such as iron filings, nickel powder, and iron oxide, are particularly harmful to batteries and may cause short circuits, increased self-discharge, or even safety hazards. However, they are completely ineffective against common non-magnetic impurities in electrolytes, such as copper filings, aluminum slag, plastic particles, and silicon oxides.

[0003] To address the aforementioned problem of magnetic impurity filtration, Chinese Patent Publication No. CN117960375B discloses a magnetic filter for removing iron slag from electrolytes. The filter includes a cylinder and connecting pipes. Two sets of connecting pipes are symmetrically distributed on the outer bottom of the cylinder and communicate with the outer bottom of the cylinder. The filter further includes: a feeding device located at the top of the cylinder for feeding material into the cylinder, with its bottom communicating with the top of the cylinder; an adsorption device located inside the cylinder for adsorbing and removing impurities from the material flowing through it, fixedly connected to the inner wall of the cylinder; and a filtering device located inside the cylinder below the feeding device. This invention relates to the field of electrolyte filtration technology. This magnetic filter for removing iron slag from electrolytes can classify impurities in the material, eliminating the need for further separation and facilitating subsequent recycling. In the above-mentioned scheme, the magnetic rod is provided with annular protrusions to adsorb ferromagnetic impurities in the electrolyte, thereby achieving a filtration effect. However, it cannot filter non-magnetic impurities in the electrolyte. Therefore, we propose a magnetic filter for electrolyte in new energy vehicle batteries. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a magnetic filter for electrolyte in a new energy vehicle battery, comprising a centrifuge housing and inlet / outlet ports disposed on the centrifuge housing. The inlet / outlet ports input and output battery electrolyte into and out of the centrifuge housing. The filter also includes: The pressure filtration mechanism, located inside the centrifuge shell, squeezes and filters impurities in the battery electrolyte. A magnetic filter mechanism is provided, and the magnetic filter mechanism is installed in a circular manner at equal intervals on the filter press mechanism. It adsorbs and removes magnetic impurities in the battery electrolyte inside the centrifuge shell and inputs the battery electrolyte into the filter press mechanism. An impurity shovel is installed on the end of the magnetic filter mechanism away from the filter press mechanism. The centrifugal shell is driven to rotate by an independent external power source. The rotation of the centrifugal shell separates impurities in the battery electrolyte inside by centrifugation, so that non-magnetic impurities are concentrated on the outermost edge of the centrifugal shell and guided into the magnetic filter mechanism by the impurity shovel. The filter press mechanism is driven to rotate by an independent external power source. The filter press mechanism drives the magnetic filter mechanism to rotate, making full contact with the battery electrolyte inside the centrifuge shell, thereby filtering out non-magnetic and magnetic impurities.

[0005] In some embodiments, the magnetic filter mechanism includes a magnetic filter housing, a magnetic rod mounting bracket, and magnetic suction rods. The magnetic rod mounting bracket is disposed at both ends of the magnetic suction rods, and a plurality of magnetic suction rods are provided. The plurality of magnetic suction rods are mounted on the magnetic rod mounting bracket at equal intervals around the circumference. The magnetic rod mounting bracket is mounted on the magnetic filter housing, and the magnetic filter housing is provided with square holes. The plurality of square holes are arranged at equal intervals around the circumference of the magnetic filter housing, so that when the pressure filter mechanism drives the magnetic filter mechanism to rotate, the magnetic suction rods can contact the battery electrolyte on the outside of the magnetic filter housing.

[0006] In some embodiments, the magnetic filtration mechanism further includes a motor, a scraper, a lead screw, a lead screw mounting bracket, and a lead screw mating ring. The lead screw is mounted inside the magnetic filter housing via the lead screw mounting bracket. The lead screw is threadedly connected to the lead screw mating ring, and the lead screw mating ring is mounted on the scraper. The lead screw is driven to rotate by the motor, which is mounted on the magnetic filter housing. The scraper is slidably connected to a plurality of magnetic suction rods to clean and collect the magnetic impurities adsorbed on the magnetic suction rods, and input the magnetic impurities into the filter press mechanism.

[0007] In some embodiments, the filter press mechanism includes a hydraulic cylinder, a filter press housing, a filter press plate, and a magnetic filter mounting hole on the filter press housing. The hydraulic cylinder is mounted on the filter press housing, and its output end is fixedly connected to the filter press plate. The filter press plate is disposed inside the filter press housing, and the filter press housing slides in cooperation with the filter press plate. The inner surface of the filter press housing is in contact with the edge of the filter press plate to prevent battery electrolyte containing impurities from leaking from its edge. The magnetic filter mechanism is mounted on the filter press mechanism through the magnetic filter mounting hole. Both the filter press housing and the centrifugal housing are provided with one-way valves at their bottoms. A conduit is installed between the one-way valves on the filter press housing and the centrifugal housing. The flow direction of the one-way valves is to allow battery electrolyte to flow from the filter press mechanism to the centrifugal housing, so that the internal pressure of the filter press housing is balanced when the filter press plate descends. The surface of the filter press plate near the hydraulic cylinder is a sealing plate, so that a negative pressure can be formed when the filter press plate slides inside the filter press housing.

[0008] In some embodiments, the filter press plate is provided with a plurality of filter screens, which are installed linearly and parallelly on the filter press plate. The plurality of filter screens are of different types and are used to filter, classify and collect different types of magnetic or non-magnetic impurities.

[0009] In some embodiments, a filter cake collection block is fixedly connected to the bottom of the filter press housing, and a filter press mating block is provided on the outside of the filter cake collection block. The filter cake collection block and the filter press mating block are rotatably connected. Several through holes are opened on the side of the filter press plate, at corresponding positions of the filter cake collection block and the filter press mating block. The filter cake collection block and the filter press mating block can be rotated to open or close their through holes, and then impurities in several filter screens are collected through the through holes on the filter press plate.

[0010] In some embodiments, the side of the centrifuge shell is shaped as a semi-circular arc, so that non-magnetic impurities after centrifugation of the battery electrolyte are concentrated in the semi-circular arc. The impurity shovel is shaped as a semi-circular arc and slides in cooperation with the side of the centrifuge shell to collect and guide the non-magnetic impurities.

[0011] This utility model has at least the following beneficial effects: 1. This utility model uses a centrifugal shell to centrifuge and separate the battery electrolyte. Non-magnetic impurities are separated to the outermost edge of the centrifugal shell and guided by the impurity shovel into the magnetic filter mechanism. The magnetic impurities are filtered out by the magnetic suction rod. The battery electrolyte containing non-magnetic impurities is then transported to the filter press shell. A filter plate with multiple layers of different types of filter screens is driven by a hydraulic rod and slides in cooperation with the inner wall of the filter press shell, thereby achieving the filtration, classification and collection of non-magnetic impurities.

[0012] 2. This utility model, by setting a one-way valve and a conduit, allows the liquid in the filter press housing to flow into the centrifuge housing, achieving liquid pressure balance. The one-way valve only allows liquid to pass through, while impurities are retained on the filter screens of various types or in the filter residue collection block under the pressure of the filter plate. By rotating the filter press mating block, its through holes are matched with the through holes on the filter plate and the filter residue collection block, impurities can be cleaned and collected from the outside, completing the filtration, classification, and collection of non-magnetic impurities. The hydraulic cylinder drives the filter plate to rise and circulate the filter, achieving clean quality of battery electrolyte.

[0013] 3. This utility model uses a motor to drive a lead screw to rotate. When magnetic impurities on the magnetic rod need to be collected, the drive scraper slides horizontally along the magnetic rod. Due to the magnetism of the magnetic rod, the magnetic impurities will be rolled up and move forward without spilling out, eventually reaching the magnetic filter mounting hole. When the power is turned off, the magnetism of the magnetic rod is released, allowing the magnetic impurities to enter the magnetic filter housing under negative pressure. This completes the cleaning of the magnetic rod while also classifying and collecting the magnetic impurities, improving the practicality of the product.

[0014] 4. This utility model, by setting a filter press plate to block the magnetic filter mounting hole, uses a hydraulic cylinder to drive the filter press plate to move upward, creating a negative pressure inside the filter housing. This draws non-magnetic impurities on the filter housing into the magnetic filter mechanism through the impurity bucket or the magnetic scraper on the magnetic suction rod. When the liquid pressure inside the magnetic filter housing reaches equilibrium with the liquid pressure inside the centrifugal housing, the hydraulic cylinder drives the filter press plate to move downward. The filter screens of various sizes on the filter press plate filter the battery electrolyte. This completes the negative pressure suction while improving the stability and practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection of the magnetic filter mechanism of this utility model; Figure 3 This is a partial cross-sectional view of the magnetic filter mechanism of this utility model; Figure 4 This is a schematic diagram of the lead screw mating ring connection of this utility model; Figure 5 This is a partial cross-sectional view of the filter press mechanism of this utility model.

[0016] In the diagram: 1-Filter press mechanism; 11-Hydraulic cylinder; 12-Filter press housing; 13-Magnetic filter mounting hole; 14-Filter residue collection block; 15-Filter press mating block; 16-Filter press plate; 2-Magnetic filter mechanism; 21-Motor; 22-Magnetic filter housing; 23-Magnetic suction rod mounting bracket; 24-Scraper; 25-Lead screw; 26-Lead screw mounting bracket; 27-Lead screw mating ring; 28-Magnetic suction rod; 3-Inlet / outlet; 4-Centrifuge housing; 5-Impurity hopper; 6-Check valve; 7-Conduit. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0018] Please see Figure 1-2 4-5, This utility model provides a technical solution: a magnetic filter for electrolyte in a new energy vehicle battery, including a centrifuge housing 4 and an inlet / outlet 3 disposed on the centrifuge housing 4, the inlet / outlet 3 inputting and outputting battery electrolyte into and out of the centrifuge housing 1, and further including: The pressure filter mechanism 1 is installed inside the centrifuge shell 4 to squeeze and filter impurities in the battery electrolyte; A magnetic filter mechanism 2 is provided. Several magnetic filter mechanisms 2 are installed on the filter press mechanism 1 in a circular pattern with equal intervals. They adsorb and remove magnetic impurities in the battery electrolyte inside the centrifugal shell 4 and input the battery electrolyte into the filter press mechanism 1. An impurity shovel 5 is installed on the end of the magnetic filter mechanism 2 away from the filter press mechanism 1. The centrifugal shell 4 is driven to rotate by an independent external power source. The rotation of the centrifugal shell 4 separates the impurities in the battery electrolyte inside by centrifugation, so that the non-magnetic impurities are concentrated on the outermost edge of the centrifugal shell 4 and guided into the magnetic filter mechanism 2 through the impurity shovel 5. The filter press 1 is driven to rotate by an independent external power source. The filter press 1 drives the magnetic filter 2 to rotate, making it fully contacted with the battery electrolyte inside the centrifugal shell 4, thereby filtering non-magnetic and magnetic impurities. The device achieves efficient and precise removal of mixed impurities in battery electrolytes through the organic combination of mechanical motion, magnetic field adsorption, and hydraulic compression, significantly improving the purity of the electrolytes. The magnetic filter mechanism 2 includes a magnetic filter housing 22, a magnetic rod mounting bracket 23, and magnetic suction rods 28. The magnetic rod mounting bracket 23 is disposed at both ends of the magnetic suction rods 28. The number of magnetic suction rods 28 is set to a certain extent, and the magnetic suction rods 28 are installed on the magnetic rod mounting bracket 23 at equal intervals around the circumference. The magnetic rod mounting bracket 23 is mounted on the magnetic filter housing 22. The magnetic filter housing 22 is provided with square holes, and the number of square holes is set to a certain extent, and the square holes are arranged on the magnetic filter housing 22 at equal intervals around the circumference, so that when the filter press mechanism 1 drives the magnetic filter mechanism 2 to rotate, the magnetic suction rods 28 can contact the battery electrolyte on the outside of the magnetic filter housing 22. The magnetic filter mechanism 2 also includes a motor 21, a scraper 24, a lead screw 25, a lead screw mounting bracket 26, and a lead screw mating ring 27. The lead screw 25 is installed inside the magnetic filter housing 22 through the lead screw mounting bracket 26. The lead screw 25 is threadedly connected to the lead screw mating ring 27. The lead screw mating ring 27 is installed on the scraper 24. The lead screw 25 is driven to rotate by the motor 21, which is installed on the magnetic filter housing 22. The scraper 24 is slidably connected to several magnetic suction rods 28 to clean and collect the magnetic impurities adsorbed on the magnetic suction rods 28 and input the magnetic impurities into the filter press mechanism 1. The magnetic filter mechanism 2 adsorbs magnetic impurities and maintains adsorption efficiency through a self-cleaning mechanism. The magnetic rods 28 are evenly spaced around the circumference and directly contact the electrolyte to adsorb magnetic particles. The scraper 24 and the lead screw 25 are driven by the motor 21 and scrape off the impurities on the surface of the magnetic rods 28 through threaded transmission. The magnetic rods 28 rotate with the filter press mechanism 1 and fully contact the electrolyte to adsorb magnetic impurities. The motor 21 drives the lead screw 25 to rotate, which drives the scraper 24 to slide along the magnetic rods 28 and push the adsorbed impurities into the filter press mechanism 1 for further processing. The filter press mechanism 1 includes a hydraulic cylinder 11, a filter press housing 12, a filter press plate 16, and a magnetic filter mounting hole 13 opened on the filter press housing 12. The hydraulic cylinder 11 is mounted on the filter press housing 12, and the output end of the hydraulic cylinder 11 is fixedly connected to the filter press plate 16. The filter press plate 16 is disposed inside the filter press housing 12, and the filter press housing 12 and the filter press plate 16 slide together. The inner surface of the filter press housing 12 is in contact with the edge of the filter press plate 16 to prevent battery electrolyte containing impurities from leaking from its edge. The magnetic filter mechanism 2 uses a magnetic filter mounting hole 13. The mounting hole 13 is installed on the filter press mechanism 1. One-way valves 6 are provided at the bottom of both the filter press housing 12 and the centrifuge housing 4. A conduit 7 is installed between the one-way valves 6 on the filter press housing 12 and the centrifuge housing 4. The flow direction of the one-way valve 6 is to allow the battery electrolyte to flow from the filter press mechanism 1 to the centrifuge housing 4, so that when the filter press plate 16 descends, the internal pressure of the filter press housing 12 is balanced. The surface of the filter press plate 16 near the hydraulic cylinder 11 is a sealing plate, so that when the filter press plate 16 slides in the filter press housing 12, it can form a negative pressure. The filter press plate 16 is provided with several filter screens, which are installed in a linear parallel manner on the filter press plate 16. The filter screens are of different models and are used to filter, classify and collect different types of magnetic or non-magnetic impurities. The filter press mechanism 1 uses hydraulic pressure to squeeze and filter the electrolyte, separating impurities of different particle sizes. The hydraulic cylinder 11 drives the filter press plate 16 to reciprocate, generating squeezing pressure. Multiple sets of linear parallel filter screens (with different pore sizes) are installed on the surface of the filter press plate 16 to achieve graded filtration of impurities. The filter residue collection block 14 and the filter press cooperation block 15 control the impurity discharge channel by rotating and adjusting the opening and closing of the through hole. The hydraulic cylinder 11 pushes the filter press plate 16 to compress the electrolyte, and the impurities are trapped in the filter screen. The one-way valve 6 and the conduit ensure the pressure balance between the filter press shell 12 and the centrifuge shell 4 to prevent liquid backflow. A filter cake collection block 14 is fixedly connected to the bottom of the filter press shell 12. A filter press mating block 15 is provided on the outside of the filter cake collection block 14. The filter cake collection block 14 and the filter press mating block 15 are rotatably connected. Several through holes are opened on the side of the filter press plate 16, at corresponding positions of the filter cake collection block 14 and the filter press mating block 15. The filter cake collection block 14 and the filter press mating block 15 can be adjusted to open or close their through holes by rotation. Impurities in several filter screens are collected through the through holes on the filter press plate 16. The scraper 24 of the magnetic filter mechanism 2 automatically cleans the magnetic suction rod 28 to avoid adsorption saturation and efficiency reduction. The multi-layer filter screen of the filter press plate 16 realizes the classification and collection of impurities. The one-way valve 6 and the conduit ensure stable pressure in each chamber and prevent leakage. Electrolyte enters the centrifuge shell 4 through the inlet / outlet 3. The centrifuge shell 4 rotates at high speed, and non-magnetic impurities are thrown to the inner wall of the semi-circular arc. The impurity shovel 5 scrapes the impurities into the magnetic suction rod 28 area of ​​the magnetic filter mechanism 2. The magnetic filter mechanism 2 rotates with the filter press mechanism 1. The magnetic suction rod 28 adsorbs the magnetic impurities in the electrolyte. The scraper 24 cleans the magnetic suction rod 28 and pushes the impurities to the filter press mechanism 1. The hydraulic cylinder 11 drives the filter press plate 16 to squeeze the electrolyte. Filter screens with different pore sizes trap impurities. The filter residue collection block 14 and the filter press cooperation block 15 adjust the discharge of impurities through the through hole. The filtered electrolyte returns to the centrifuge shell 4 through the one-way valve 6, forming a closed-loop treatment. Impurities that are not completely treated participate in the centrifugation-magnetic suction-filter press cycle again. The filter plate 16 blocks the magnetic filter mounting hole 13. The centrifugal housing 4 rotates under the drive of an external power source to achieve centrifugal separation of the battery electrolyte. The filter press mechanism and the magnetic filter mechanism 2 installed on it rotate inside the centrifugal housing 4 under the drive of an external power source. At this time, the hydraulic cylinder 11 drives the filter plate 16 to move upward, so that a negative pressure is formed inside the filter press housing 12. The non-magnetic impurities on the edge of the filter press housing 1 are sucked into the magnetic filter mechanism 2 through the impurity bucket 5. After the magnetic impurities are filtered out again by the magnetic suction rod 28, they enter the interior of the filter press housing 12 through the magnetic filter mounting hole 13. When the liquid pressure inside the magnetic filter housing 12 and the liquid pressure inside the centrifugal housing 1 reach equilibrium, the hydraulic cylinder 11 drives the filter plate 16 to move downward. The filter screens of various sizes on the filter plate 16 filter the battery electrolyte. The liquid in the filter housing 12 flows into the centrifuge housing 4 through the one-way valve 6 and the conduit 7 to achieve liquid pressure balance. The one-way valve 6 only allows liquid to pass through, while impurities are retained on the filter screens of various types or in the filter cake collection block 14 under the pressure of the filter plate 16. By rotating the filter mating block 15 so that its through holes match the through holes on the filter plate 16 and the filter cake collection block 14, impurities can be cleaned and collected from the outside. At this time, the filtration, classification and collection of non-magnetic impurities are completed. When magnetic impurities on the magnetic suction rod 28 need to be collected, the motor 21 is started to drive the lead screw 25 to rotate, thereby driving the scraper 24 to slide horizontally along the magnetic suction rod 28. Due to the magnetism of the magnetic suction rod 28, the magnetic impurities will be rolled up and move forward without overflowing, eventually reaching the magnetic filter mounting hole 13. The power is turned off to release the magnetism of the magnetic suction rod 28, so that the magnetic impurities enter the magnetic filter housing 12 under the action of negative pressure. The same as the non-magnetic impurity filtration step is completed, thus completing the filtration, classification and collection of magnetic impurities. Example

[0019] Please see Figure 1-5This utility model provides a technical solution: a magnetic filter for electrolyte of new energy vehicle batteries, including a centrifugal shell 4 with a semi-circular arc shape on the side, so that non-magnetic impurities after centrifugation of the battery electrolyte are concentrated in the semi-circular arc, and an impurity shovel 5 with a semi-circular arc shape that slides in cooperation with the side of the centrifugal shell 4 to collect and guide non-magnetic impurities. The centrifugal shell 4 provides a centrifugal separation environment. It generates a centrifugal force field through high-speed rotation. Driven by an external power source, it uses centrifugal force to throw non-magnetic impurities with higher density toward the semi-circular inner wall of the shell. The side is designed to be semi-circular so that the impurity concentration area and the impurity bucket 5 can be effectively matched to facilitate impurity collection. The impurity bucket 5 collects non-magnetic impurities after centrifugal separation and guides them to the magnetic filter mechanism 2. The semi-circular arc structure fits against the inner wall of the centrifuge shell 4, and the impurities are efficiently collected through relative sliding, and the non-magnetic impurities are transported to the magnetic filter mechanism 2. The filter solves the problems of low efficiency in removing electrolyte impurities and high maintenance costs through the multi-field coupling of mechanical, magnetic, and hydraulic fields, and improves equipment stability through modular design and intelligent control.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic filter for electrolyte in a new energy vehicle battery, comprising a centrifuge housing (4) and an inlet / outlet (3) disposed on the centrifuge housing (4), wherein the inlet / outlet (3) inputs and outputs battery electrolyte into and out of the centrifuge housing (4), characterized in that: It also includes: The pressure filter mechanism (1) is set inside the centrifuge shell (4) to squeeze and filter impurities in the battery electrolyte; A magnetic filter mechanism (2) is provided. Several magnetic filter mechanisms (2) are installed on the filter press mechanism (1) in a circular pattern at equal intervals. They adsorb and remove magnetic impurities in the battery electrolyte inside the centrifugal shell (4) and input the battery electrolyte into the filter press mechanism (1). An impurity shovel (5) is installed on the end of the magnetic filter mechanism (2) away from the filter press mechanism (1). The centrifugal shell (4) is driven to rotate by an independent external power source. The centrifugal shell (4) rotates to centrifuge and separate the impurities in the battery electrolyte inside, so that the non-magnetic impurities are concentrated on the outermost edge of the centrifugal shell (4) and guided into the magnetic filter mechanism (2) by the impurity bucket (5). The filter press (1) is driven to rotate by an independent external power source. The filter press (1) drives the magnetic filter (2) to rotate, and it comes into complete contact with the battery electrolyte inside the centrifugal shell (4), thereby filtering non-magnetic and magnetic impurities.

2. The magnetic filter for the electrolyte of a new energy vehicle battery according to claim 1, characterized in that: The magnetic filter mechanism (2) includes a magnetic filter housing (22), a magnetic rod mounting bracket (23), and a magnetic suction rod (28). The magnetic rod mounting bracket (23) is disposed at both ends of the magnetic suction rod (28). The number of magnetic suction rods (28) is set to a certain extent. The magnetic suction rods (28) are installed on the magnetic rod mounting bracket (23) at equal intervals around the circumference. The magnetic rod mounting bracket (23) is installed on the magnetic filter housing (22). The magnetic filter housing (22) is provided with square holes. The number of square holes is set to a certain extent. The square holes are arranged on the magnetic filter housing (22) at equal intervals around the circumference, so that when the filter press mechanism (1) drives the magnetic filter mechanism (2) to rotate, the magnetic suction rod (28) can contact the battery electrolyte on the outside of the magnetic filter housing (22).

3. The magnetic filter for the electrolyte of a new energy vehicle battery according to claim 2, characterized in that: The magnetic filter mechanism (2) further includes a motor (21), a scraper (24), a lead screw (25), a lead screw mounting bracket (26), and a lead screw mating ring (27). The lead screw (25) is installed inside the magnetic filter housing (22) through the lead screw mounting bracket (26). The lead screw (25) is threadedly connected to the lead screw mating ring (27). The lead screw mating ring (27) is installed on the scraper (24). The lead screw (25) is driven to rotate by the motor (21). The motor (21) is installed on the magnetic filter housing (22). The scraper (24) is slidably connected to several magnetic suction rods (28) to clean and collect the magnetic impurities adsorbed on the magnetic suction rods (28) and input the magnetic impurities into the filter press mechanism (1).

4. The magnetic filter for the electrolyte of a new energy vehicle battery according to claim 1, characterized in that: The filter press mechanism (1) includes a hydraulic cylinder (11), a filter press housing (12), a filter press plate (16), and a magnetic filter mounting hole (13) opened on the filter press housing (12). The hydraulic cylinder (11) is mounted on the filter press housing (12), and the output end of the hydraulic cylinder (11) is fixedly connected to the filter press plate (16). The filter press plate (16) is disposed inside the filter press housing (12), and the filter press housing (12) and the filter press plate (16) slide together. The inner surface of the filter press housing (12) is in contact with the edge of the filter press plate (16) to prevent battery electrolyte containing impurities from leaking from its edge. The magnetic filter mechanism (2) uses magnetic filtration... The mounting hole (13) is installed on the filter press mechanism (1). The bottom of the filter press housing (12) and the centrifugal housing (4) are both provided with a one-way valve (6). A conduit (7) is installed between the one-way valve (6) on the filter press housing (12) and the centrifugal housing (4). The flow direction of the one-way valve (6) is to allow the battery electrolyte to flow from the filter press mechanism (1) to the centrifugal housing (4), so that when the filter press plate (16) descends, the pressure inside the filter press housing (12) is balanced. The surface of the filter press plate (16) near the hydraulic cylinder (11) is a sealing plate, so that when the filter press plate (16) slides inside the filter press housing (12), a negative pressure can be formed.

5. The magnetic filter for the electrolyte of a new energy vehicle battery according to claim 4, characterized in that: The filter press plate (16) is provided with a plurality of filter screens, which are installed linearly and parallelly on the filter press plate (16). The plurality of filter screens are of different types and are used to filter, classify and collect different types of magnetic or non-magnetic impurities.

6. The magnetic filter for the electrolyte of a new energy vehicle battery according to claim 5, characterized in that: The bottom of the filter press housing (12) is fixedly connected to a filter cake collection block (14). A filter press cooperation block (15) is provided on the outside of the filter cake collection block (14). The filter cake collection block (14) and the filter press cooperation block (15) are rotatably connected. Several through holes are opened on the side of the filter press plate (16), at corresponding positions of the filter cake collection block (14) and the filter press cooperation block (15). The filter cake collection block (14) and the filter press cooperation block (15) can be adjusted by rotating to open or close their through holes, and then the impurities in several filter screens are collected through the through holes on the filter press plate (16).

7. The magnetic filter for the electrolyte of a new energy vehicle battery according to claim 1, characterized in that: The centrifuge shell (4) is shaped like a semi-circular arc, so that the non-magnetic impurities after centrifugation of the battery electrolyte are concentrated in the semi-circular arc. The impurity bucket (5) is shaped like a semi-circular arc and slides in cooperation with the side of the centrifuge shell (4) to collect and guide the non-magnetic impurities.

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